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Fluke 744 Calibrator Troubleshooting & Servicing Guide [110/138]
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744
Users Manual
100
If the calibrator will not turn on, check for a dead
battery or unplugged battery eliminator. If the
calibrator is receiving power, the display flashes
when you turn it on. To see if the calibrator is
receiving power, cup your hands around the display
to shield it from ambient light, and watch the display
as you press the o button. If there is a flash, but the
calibrator does not power up normally, have the
calibrator serviced.
Service Center Calibration or Repair
Calibration, repairs, or servicing not covered in this
manual should be performed only by qualified
service personnel. If the calibrator fails, check the
nickel-cadmium battery pack first, and replace it if
needed.
Verify that the calibrator is being operated in
accordance with the instructions in this manual. If the
calibrator is faulty, send a description of the failure
with the calibrator. Pressure modules do not need to
accompany the calibrator unless the module is faulty
also. Be sure to pack the calibrator securely, using
the original shipping container if it is available. Send
the equipment postage paid and insured, to the
nearest Service Center. (Refer to the list of Service
Centers which follows.) Fluke assumes no
responsibility for damage in transit.
A Fluke 744 calibrator covered by the warranty will
be promptly repaired or replaced (at Fluke’s option)
and returned to you at no charge. See the back of
the title page for warranty terms. If the warranty
period has expired, the calibrator will be repaired and
returned for a fixed fee. If the calibrator or pressure
module is not covered under the warranty terms,
contact an authorized service center for a price quote
for repair.
To locate an authorized service center, call Fluke
using any of the phone numbers listed below, or visit
us on the World Wide Web: www.fluke.com
USA and Canada:
1-888-99-FLUKE (1-888-993-5853)
Europe: +31 402-678-200
Japan: +81-3-3434-0181
Singapore: +65-738-5655
Anywhere in the world: +1-425-356-5500
Or visit us on the World Wide Web: www.fluke.com
Содержание
334- Documenting process calibrator
- Documenting process calibrator users manual
- Users manual
- Limited warranty limitation of liability
- Table of contents
- Title page
- Contents
- Table title page
- List of tables
- List of figures
- Figure title page
- Introduction
- Documenting process calibrator
- Standard equipment
- Figure 1 standard equipment
- Ac20 test clip
- 2 red and 2 black
- 1 red and 1 black
- Tp20 test probe
- Tl24 test leads
- Jumper 2 black
- Documenting process calibrator standard equipment
- Users manual
- Figure 1 standard equipment cont
- Safety information
- Documenting process calibrator safety information
- This manual otherwise the protection provided by the calibrator may be impaired
- This calibrator is designed and tested in accordance with iec1010 1 and can csa c22 no 1010 92 use the calibrator only as specified in
- Symbols used on the calibrator and in this manual are explained in figure 2
- Figure 2 definition of symbols
- Warning
- Safety information cont
- Safety information cont
- Warning cont
- Getting started exercise
- Ot03f eps
- Gj4s eps
- Figure 4 measure source example
- Figure 3 jumper connections for demonstration
- Documenting process calibrator getting started exercise
- Operating features
- Input and output jacks
- Figure 5 shows the calibrator input and output jacks table 2 explains their use
- Ot05f eps
- Figure 5 input output jacks and connectors
- Documenting process calibrator operating features
- Figure 6 shows the calibrator keys and table 3 explains their functions the softkeys are the four unmarked blue keys just below the display softkey functions are defined by the labels that appear above the softkey during operation softkey labels and other display text are shown in this manual in bold type for example
- Figure 6 keys
- Choice
- Users manual
- Documenting process calibrator operating features
- Display
- Figure 7 elements of a typical display
- Users manual
- Using the strap and bail
- Setting up the calibrator
- Charging the battery
- Gj9f eps
- Figure 9 removing the battery and using the charger
- Documenting process calibrator setting up the calibrator
- Battery life
- Using the optional battery eliminator
- Preserving battery life
- Displaying the date and time
- Adjusting the display contrast
- Selecting the display language
- Using the backlight
- Personalizing the calibrator
- Using measure mode
- Measuring electrical parameters
- Measurement ranges
- Figure 10 electrical measurement connections
- Documenting process calibrator using measure mode
- Warning
- Testing continuity
- Measuring pressure
- Isolation valve
- Gage module
- Figure 12 connections for measuring pressure
- Documenting process calibrator using measure mode
- Differential module
- Ot12c eps
- Using thermocouples
- Measuring temperature
- Documenting process calibrator using measure mode
- Warning
- V maximum to
- Users manual
- Tc miniplug
- Process temperature
- Figure 13 measuring temperature with a thermocouple
- Documenting process calibrator using measure mode
- Using resistance temperature detectors rtds
- Three terminal configuration the calibrator accepts rtd measurement inputs in two three or four wire connections as shown in figure 15 a four wire configuration provides the highest measurement precision and two wire provides the lowest measurement precision
- The most common
- The calibrator accepts rtd types shown in table 6 rtds are characterized by their resistance at 0 c 32 f which is called the ice point or
- Is 100 ω most rtds come in a
- Users manual
- Gj15f eps
- Figure 15 measuring temperature with an rtd
- Measurement scale
- Linear output transmitters
- Square law process variables
- Warning
- Measuring or sourcing with custom units
- Using the 700 iv current shunt
- Damping your measurements
- Using source mode
- Sourcing electrical parameters
- Figure 16 electrical sourcing connections
- Documenting process calibrator using source mode
- Common
- Simulating a 4 to 20 ma transmitter
- Tc rtd
- Source
- Setup ma
- Meas source
- Ma ma v v rtd
- Loop power supply
- Figure 17 connections for simulating a 4 to 20 ma transmitter
- Documenting process calibrator using source mode
- Supplying loop power
- Tc rtd
- Source
- Setup ma
- Meas source
- Ma ma v v rtd
- Figure 18 connections for supplying loop power
- Documenting process calibrator using source mode
- V v hz
- Warning
- Sourcing pressure
- Users manual
- Tc rtd
- Source
- Setup ma
- Pressure module
- Meas source
- Ma ma v v rtd
- Hand pump
- Figure 19 connections for sourcing pressure
- Simulating thermocouples
- Simulating rtds
- Meas source
- Documenting process calibrator using source mode
- Color depends on type of tc
- V v hz
- Tc rtd
- Tc miniplug
- Source
- Setup ma
- Ma ma v v rtd
- Figure 20 connections for simulating a thermocouple
- Users manual
- Ps ps m in in
- Figure 21 connections for simulating an rtd
- Square law process variables
- Source scale
- Linear responding transmitters
- Using manual step
- Stepping and ramping the output value
- Using auto step
- Ramping the output
- Tc rtd
- Voltage trip detect
- Users manual
- Trip relay output
- Source ma
- Source
- Setup ma
- Meas source
- Ma ma v v rtd
- Input 4 20 ma
- Figure 22 checking a relay output trip alarm
- Simultaneous measure source
- Documenting process calibrator simultaneous measure source
- Calibrating a process instrument
- Generating as found test data
- Users manual
- V v hz
- Tc rtd
- Tc miniplug
- Source
- Setup ma
- Meas source
- Ma ma v v rtd
- Figure 23 calibrating a thermocouple temperature transmitter
- Adjusting the transmitter
- As left test run
- Test comments
- Calibrating a delta pressure flow instrument
- Calibrating a limit switch
- Transmitter mode
- Warning
- Saving results
- Memory operations
- Reviewing memory
- Data logging
- Running a preloaded task
- Recording min and max measurements
- Clearing memory
- Using the built in calculator
- Saving to and recalling from the registers
- Using the calculator to set the source value
- Quick guide to applications
- Figure 26 measuring voltage drop
- Figure 25 calibrating a chart recorder
- Documenting process calibrator quick guide to applications
- Circuit
- V v hz
- V max 30v max
- Tc rtd
- Source
- Setup ma
- Measure v
- Meas source
- Ma ma v v rtd
- Tc rtd
- Source
- Setup ma
- Ot27c eps
- Measure v
- Meas source
- Ma ma v v rtd
- Figure 27 monitoring ac line voltage and frequency
- Users manual
- V v hz
- Tc rtd
- Source
- Setup ma
- Pressure module
- Measure pressure source ma loop power disabled
- Meas source
- Ma ma v v rtd
- Figure 28 calibrating a current to pressure i p transmitter
- Documenting process calibrator quick guide to applications
- Original circuit wiring
- Measure ma loop power disabled
- Meas source
- Ma ma v v rtd
- Figure 29 measuring the output current of a transmitter
- V v hz
- Users manual
- Tc rtd
- Source
- Setup ma
- Power supply
- Source resistance
- Source
- Setup ma
- Measure resistance
- Meas source
- Ma ma v v rtd
- Figure 31 sourcing resistance
- Figure 30 measuring a precision resistor
- Documenting process calibrator quick guide to applications
- Circuit
- V v hz
- Tc rtd
- V v hz
- Users manual
- Tc rtd
- Source
- Setup ma
- Measure frequency
- Measure continuity
- Meas source
- Ma ma v v rtd
- Figure 33 checking a tachometer
- Figure 32 checking a switch
- Hand pump
- Figure 34 calibrating a pressure to current p i transmitter
- Documenting process calibrator quick guide to applications
- V v hz
- Tc rtd
- Source
- Setup ma
- Pressure module
- Measure ma source pressure loop power enabled 24v
- Meas source
- Ma ma v v rtd
- Users manual
- Figure 35 calibrating a mv to current transmitter
- Setup ma
- Measure frequency
- Meas source
- Ma ma v v rtd
- Figure 36 checking a vortex shedding flowmeter
- Documenting process calibrator quick guide to applications
- Tc rtd
- Source
- Replacing the battery pack
- Maintenance
- Communicating with a pc
- Cleaning the calibrator
- Internal lithium backup battery
- In case of difficulty
- Calibration data
- Service center calibration or repair
- Table 9 lists the fluke part number of each user replaceable part for model 744 see standard equipment near the front of this manual and
- Replacement parts
- Documenting process calibrator replacement parts
- Accessories later in this manual for model or part numbers of standard and optional equipment
- Accessories
- Specifications
- Documenting process calibrator specifications
- Dc voltage measurement
- Ac voltage measurement
- Resistance measurement
- Documenting process calibrator specifications
- Dc current measurement
- Frequency measurement
- Continuity testing
- Documenting process calibrator specifications
- Dc voltage output
- Dc current output
- Documenting process calibrator specifications
- Resistance sourcing
- Frequency sourcing
- Temperature thermocouples
- Documenting process calibrator specifications
- Temperature thermocouples cont
- Temperature thermocouples cont
- Documenting process calibrator specifications
- Temperature resistance temperature detectors
- Temperature resistance temperature detectors cont
- Documenting process calibrator specifications
- Loop power supply
- Top and bottom limits of ranges with auto range on
- Documenting process calibrator specifications
- Top and bottom limits of ranges with auto range on cont
- General specifications
- Documenting process calibrator specifications
- Figure 37 lcd operating environment specification
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Learn how to troubleshoot a non-working Fluke 747 calibrator, check battery, verify power, and find service centers for repairs or warranty service.